The top two most common passwords in 2013 were "123456" and "Password," much to the dismay of security experts begging users to create more sophisticated passwords. The full list of passwords was compiled by SplashData and included stolen passwords that were posted online over the past 12 months.

The top five worst passwords:

1. 123456

2. Password

3. 12345678

4. Qwerty

5. Abc123

Security experts also discourage using a password based on a website or application used, such as "adobe123" and "photoshop" - and many online services require passwords to be a certain length, include at least one capitalized letter, and a number or character. Furthermore, SplashData recommends using random words separate by a space or underscore, along with using different passwords for each online account.